Two‐dimensional NMR spectra of hydrolysable tannins which form equilibrium mixtures

Takashi Yoshida, Tsutomu Hatano, Takuo Okuda

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6 Citations (Scopus)

Abstract

The structures of hydrolysable tannins, each existing as an equilibrium mixture due to tautomerization at the sugar core(s) or at the dehydrohexahydroxydiphenoyl group (five‐ and six‐membered hemiacetal forms) in the molecule, were elucidated by NMR, employing 2D NMR techniques (COSY, NOESY, 1H13C long‐range COSY, etc.), on derivatives which avoid the spectral complication due to equilibration.

Original languageEnglish
Pages (from-to)S46-S55
JournalMagnetic Resonance in Chemistry
Volume30
Issue number13
DOIs
Publication statusPublished - 1992

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Keywords

  • Anomer
  • Camelliatannin H
  • Coriariin H
  • COSY
  • Euphorbin C
  • Heteronuclear long‐range
  • Hydrolysable tannin
  • Oenothein B
  • Oligomeric hydrolysable tannin
  • Tannin

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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